Campbell became the first player to earn an NBA ring (1987-1988 Lakers) and CBA ring (Albany Patroons) in the same season.

Campbell struggled for playing time during his stint in Los Angeles. The Lakers allowed him to be selected in the 1989 expansion draft by the Minnesota Timberwolves for whom he averaged 23.2 points and 5.5 rebounds per game in their inaugural season. He held the Timberwolves' original all-time scoring record, scoring 4,888 points, before having his record later broken by Doug West.